Telegraphic transmitting apparatus.



Nu 65L545.

Patented lune l2, woo. J.GARDNER.

TELEGRAPHIG TRANSMITTING APPARATUS.

(Application filed. Apr. 2, 1900.) (No Model.) 2 Sheets-Sheet I.

THE Nuilms PETERS co, moTo-Llruu, WASHINGTON D c.

No. 651,545. Patented lune l2, I900. J. GARDNER. TELEGBAPHIC TRANSMITTING APPARATUS.

(Applies-tier: filed Apr. 2, 1900.) (No Model.) 2 Sheets-Sheet 2.

I m: WITH? m: Noam: PEYERS :0, PHOYC-LITKOTWASNINGTON. u c.

NITED STATES PATENT OFFICE.

- JOHN GARDNER, or KNoTr END, ENGLAND.

TELEGRAPHIC TRANSMITTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 651,545, dated June 12, 1900. Application filed an 2, 1900. Serialll'o. 11,085. (No model.)

To all whom it may concern.-

Be it known that I, JOHN GARDNER, a citizen of the British Empire, residing at Knott' End,inthecountyofLancaster,England,'have I invented certain new and useful Improvements in Telegraphic Transmitting Appara-i tus, of which the followingis a full, clear,.and exact description.

This invention relates to telegraphic transmitting instruments; and its object is to so construct and arrange them that while they continuously or intermittently transmit any desired word, signal, or the like in'repetition.

In the apparatus constructed for the purposes of this invention there is arranged a r0- tatable disk or wheel provided with teeth or projections in such a manner that when the disk is rotated these teeth successively close the telegraphic circuit and can produce signals corresponding with the dots and dashes of the Morse system. For this purpose the teeth are made of two lengths corresponding with the dots and dashes, respectively, and the long and short teeth are so arranged with required spaces as to spell out thedesired word or signal during the rotation of the disk. When the ordinary Morse key is used'in conjunction with the apparatus, the rotatable disk can conveniently be arranged to operate the key by its teeth. The rotation of the wheel when in action can be effected by means of a small electromotor, by clockwork, or by other suitable known means. This transmitting arrangement is especially applicable for use in connection with the wireless system of telegraphy, and a lighthouse or navigable vessel, for example, furnished with it may continuously transmit its name to be received by any appropriate floating or land station provided with a suitable receiver within its sphere.

I will further describe my said invention with reference to the accompanying drawings, in which- Figure 1 shows a sectional side elevation, Fig. 2 a sectional plan, and Fig. 3 a transverse section. Figs. 4. and 45 area cross-section and a partial elevation, respectively, of the rotary disk; and Fig. 5, an end elevation of the contact-maker.

Referring to the drawings, A is a Morse key pivoted to the framework of the apparatus and normally maintained in the open position 5 5 .by the spring B. One end of the key carries the usual finger-piece and the other end a pivoted arm 0, which has attached to it the contact maker or strip D. The end of the key is cut away to receive a pin fixed in the arm 0, and it is also provided with a spring G, the end'of which comes below and in contact with the pin. With this arrangement 'the' movement of the key causes the contactmaker D to move into and out of touch with the point of the adjustable terminal screw E, and thus to open and close the circuit. The key and the screw E are connected with the external circuit by the terminals F F. The

spring G is shown in the form and position which'I have found to be favorable; but it may obviously be otherwise arranged. It will be seen that there is considerable distance between the two contact-points D E when they arein the open position, this being found necessary to prevent sparking across in wireless telegraphy.

The rotary disk 11 is secured to a spindle J, mounted in the swing-frame K. This frame is mounted upon the main spindle L, so that it may be turned thereon into either of its extreme positions, as shown by the full and by the broken lines, Fig. 1. By this movement the rotary disk H can readily be moved into and clear from its operative position. The outward movement of the rotary disk is limited byits cross-bar M, which comes into contact with the uprights of the external frame. A wheel N on the shaft J engages with a pinion O on the main spindle L. It being convenient to have the rotary disk H removably fixed to its spindle, the latter may have a smaller fixed disk P and 'a screwed end fitted with a milled nut Q, so that the disk I-I may be clamped between the nut and .95 disk P. Relative movement may be prevented by a projection on P fitting into a corresponding recess in H. When the swing-frame is turned back, as shown by the dotted lines, Fig. 1, the key A is free to be manipulated.

For automatic sending the key A is provided with an inclined projection a and the rotary disk is turned in the direction indicated by the arrow. The teeth a have correspondingly-inclined leading edges and may be cut in the periphery of the wheel, so as to produce the required dots and dashes or signals, or the teeth may be independent and removably fixed in the disk, as shown by Fig. 4. In this case the letters or the like are formed by the teeth h,arranged on one side of the periphery of the disk, and are clamped theretoby the ring H, secured by set-screws.

The main spindle L may be rotated by a worm R, fixed upon the armature-spindle of an electromotor and gearing with the wormwheel S on L, Figs. 2 and 3. The motion is communicated to the disk II by the pinion O and the wheel N already described.

hen the disk His to be intermittently rotated, the pinion O is mounted loose upon its spindle and has a pin or projection on one side 0. On the same spindle and rotating therewith there is a grooved sliding sleeve T, also having a pin or projection 15, adapted to engage with the projection 0 on 0. When the sleeve T is in the position shown by Figs. 2 and 3, the pins 0 t are disengaged and O is not rotated. If, however, T be moved nearer to O, the pin will engage and 0 will rotate with its spindle. Any suitable equivalent clutch between 0 and T may be employed. To effect the movement of the sleeve T,a worm or tangent-screw is fixed on the main spindle L and gears with a worm-wheel V, fixed upon aspindle, upon which there is also fixed a cam W. Parallel with the cam-spindle is another spindle carrying an arm X, fitted with a projection T,engaging the groove in the sleeve T, so that the position of X determines the eonnection and disconnection of O. A returned end of the arm is shown by Fig. 3 to be resting upon the cam, which is shaped to give the desired motion. The return of the sleeve T at the end of a complete revolution of the disk I-l maybe effected by a bent pin a in the side of the wheel N coming into contact with an extension 00 of the arm X, which extension is in the path of the pin when the sleeve is driving.

Accidental displacement of the swing-frame K from either of its two positions may be prevented by means of a second arm integral with X and having a twin-notched returned end, in either of the notches of which a springpressed friction-bowl on the arm Y can engage. The notches correspond with the two positions of the clutch, and the spring y is not made so strong as to prevent the action of either the pin a or the cam WV, but strong enough to prevent the bowl Y, being displaced from its notch by the action of gravity or of .vibrations.

If the tangent-screw V makes one revolution per minute, then if the cam be single acting, as shown, the disk II also will make one revolution at the commencement of each minute and then rest. If there be two projections on the cam, the disk II will make a revolution at the commencement ofeach halfminute and in proportion for a larger number of projections on the cam.

If it be intended that the apparatus shall be used exclusively for automatic transmission, the Morse key can besnbstitnted by any suitable equivalent spring-controlled lever or the like. V

The upward movement of the key A can be limited by its projection coming into contact with a stop 8.

The teeth on the disk 11 may in part be permanent and in part removable, as shown by Fig. 4.

What I claim as my invention, and desire to secure by Letters Patent, is-.

1. In a telegraphic transmitting apparatus, the combination of a continuously-rotated main spindle, a pinion on the main spindle, a swing-frame, a spindle in the swing-frame carrying a wheel geared with the main-spindle pinion, a toothed transmitting disk or wheel on the swingframe spindle, alever operated by the teeth of the transmitting-wheel and operating a contact-maker to open and close the circuit, a clutch on the mainspindle by which the pinion can be connected and disconnected, a tangent-screw on the main spindle, a worm-wheel geared with the tangent-screw, a cam on the worm-wheel spindle adapted to operate the clutch, and a projection or part rotated with the swing -frame spindle and arranged to disconnect the clutch, substantially as set forth.

2. In a telegraphic transmitting apparatus, the combination of a continuously-rotating main spindle, a pinion on the main spindle, a swing-frame pivoted 011 the main spindle, a spindle in the swing-frame parallel with the main spindle and geared therewith, a trans mitting wheel or disk on the swing-frame spindle, and a contact-maker operated by the transmitting-wheel to open and close the telegraphic circuit, substantially as set forth.

In a telegraphic transmitting apparatus the combination of a swing-frame pivoted on a rotary spindle and carryinga spindle geared with the rotary spindle, means for driving the rotary spindle, a transmitting-wheel mounted upon the swing-frame spindle and provided with short and long teeth and spaces about its periphery, and a Morse key operated by the teeth, substantially as set forth.

4.. In a telegraphic transmitting apparatus, the combination of a rotary main spindle having a pinion thereon, a transmitting-wheel driven by connection with said pinion, a key operated by said wheel, a clutch by means of which the pinion can be put into and out of gear, a tangent-screw on the main spindle, a

WOIm-WhGGI' geared with the tangent-screw, a cam on the Worm-Wheel spindle adapted to move the clutch into gear, and a projection rotating synchronously with the transmitter and having the geared clutch in its path for putting the clutch out of gear, substantially as set forth.

In Witness whereof I have subscribed my signature in presence of two subscribing witnesses.

JOHN GARDNER.

Witnesses:

WILLIAM E. HEYS, ARTHUR MILLWARD. 

